#ECFAFB

Closest named color: Alice Blue (#F0F8FF). oklch(97.5% 0.015 202.1), rgb(236, 250, 251).

Black text reads best on this color (19.63:1).

About this color

#ECFAFB is a very light close to neutral grey. In OKLCH its lightness is 98%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Alice Blue (#F0F8FF), ΔE 0.010 away. Black text reads best on it, at 19.63:1.

Hue family	Neutrals
Lightness	very light (98%)
Chroma	close to neutral grey (0.015)
Temperature	neutral
Nearest name	Alice Blue (#F0F8FF)
Black text	19.63:1
White text	1.06:1

Values

HEX	#ECFAFB
RGB	rgb(236, 250, 251)
HSL	hsl(184, 65%, 95%)
OKLCH	oklch(97.5% 0.015 202.1)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

Pair	WCAG 2	Result	APCA	APCA guidance
White text on #ECFAFB	1.06:1	Fails	Lc 0.0	Not readable
Black text on #ECFAFB	19.63:1	AAA	Lc 101.4	Preferred for body text
#ECFAFB text on white	1.06:1	Fails	Lc 0.0	Not readable
#ECFAFB text on black	19.63:1	AAA	Lc -102.7	Preferred for body text

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 50.

Step 50
50 (this color)

#ECFAFB

oklch(97.5% 0.015 202.1)
Step 100
100

#E6EBEB

oklch(93.6% 0.005 197.1)
Step 200
200

#D2DBDC

oklch(88.5% 0.01 204.9)
Step 300
300

#B3C4C6

oklch(80.8% 0.019 205.3)
Step 400
400

#8BA7A9

oklch(70.8% 0.031 201.8)
Step 500
500

#6E9194

oklch(63.1% 0.039 202.8)
Step 600
600

#567B7E

oklch(55.6% 0.042 202.4)
Step 700
700

#46686A

oklch(49.2% 0.039 200.6)
Step 800
800

#395557

oklch(42.8% 0.034 201.6)
Step 900
900

#324647

oklch(37.8% 0.025 200)
Step 950
950

#1D292A

oklch(27% 0.017 202.6)

Export this scale for Tailwind in the Tailwind colors tool

#ECFAFB with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

Vision	Seen as	Shift (ΔE)
Protanopia (no red cones)	#F8F9FB	0.015
Deuteranopia (no green cones)	#F5F6FB	0.015
Tritanopia (no blue cones)	#E8FBFA	0.006
Achromatopsia (no color)	#F7F7F7	0.015

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #ECFAFB, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #ECFAFB in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.

Build a color system from this color Generate a palette